Brush guide for compasses



June 30, 1925. 1,544,234-

. G. E. JANES BRUSH GUIDE FOR COM'EASSES Filed May 7, 1923 Patented June30, 1 925.

UNITED STATES GEORGE E. JANES, or Los ANGELEs, CALIFORNIA.

BRUSH GUIDE FOR GOMPASSES.

Application filed. May 7, 1923. Serial No. 637,201.

To all whom it may concern:

Be it known that I, GEORGE E. JANEs, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Brush Guidesfor Compasses, of which the following is a specification. V

My present invention being a brush guide and regulator, it is a primaryobject of this invention to provide means, preferably comprising theusual elements of a compass, whereby substantially uniform circles maybe accurately drawn by means of a brush, and whereby the drawing ofuniform straight lines by means of a brush may also be facilitated.

It is an object of this invention to provide simple means, suitable foruse by sign writers, industrial artists, and others, for limiting theamount of pressure that can be applied to an artists brush, andproviding a plurality of points spaced from the tip of a brush, eitherof which points may be used as a pivot or as a gliding guide movablerelatively to a straight edge, or the like; and in a preferredembodiment of my invention, adapting a brush to be used as one leg of anadjustable pair of compasses, I employ an additional leg or fingeradapted to be secured by an adjusting screw of a pair of compasses, thismentioned additional leg or finger being preferably slotted and bent, ashereinafter described.

It being understood that the character of a line drawn by a brush,assuming a uniform supply of paint or ink thereto and a uniform angle ofinclination, may depend not only upon the uniformity of motion but uponthe uniformity of the applied pressure (determining the spread of thebrush), it is an object of this invention to provide adjustable pressureregulating means adapted to serve also as guidesand preferably comprising a plurality of points or tips spaced from the tip of a brush,said means being advantageously associated with compass parts and anovel attachment adapted to be adiustably secured thereto.

Other obiects of my invention will appear from the following descriptionof a preferred embodiment thereof, and from the appended claims, takenin connection with the accompanying drawings, in which- Fig. 1 is aperspective view illustrating the mode of using myinvention in thedrawlng of a circle.

Fig. 2 is a perspective view showing the mode of uslng my device 1n thedrawlng of a straight line, using a ruler, or-the like, as a guide.

Referring to the detailsof that embodi-;

ment of my invention which I have chosen for illustration, 1 is anadjustable'leg 'offa compass, this leg being pivoted at;2 to'a clip 3which may have been intended to receive a pencil, but which,being'resilient, is suitable to receive a brush 4, or the like,adjustment being effected by means of the link 5, provided with a slot6, and with a screw 7, shown as provided with a milled head 8.

Coming now to the strictly novel features of my invention, 9 is afinger, which may be of any suitable configuration, but which is shownas bent at 10, and rebent at 11, to provide an offset avoiding contactwith the brush 4, and enabling the tip 12 of the.

finger 9 and the tip 13 of the leg 1 to cooperate in regulating theapplication of pressure upon the tip 14 of the said brush while the sameis guided by the tip 13 in the drawing of a circle, as shown in Fig. 1,or in the drawing of a straight line, as shown in Fig. 2.

AlthoughI have shown in Fig. 2 the use of a straight edge 15, as a meansfor guiding the tip 13 of the compass leg 1, it will be understood thatany equivalent means, having any desired curvature, such as a scrollcommonly used by draftsmen, may be substituted therefor; and it will beunderstood also that, by means of the slot 16, through which the screw 7is adapted to extend, the parts referred to may be spaced suitably tothe drawing of circles of any desired diameter, or suitably to thedrawing of parallel lines at any desired relative distances from aguiding edge. It is advantageous, although not indispensable, that thepoints 12 and 13 shall be disposed on opposite sides of the tip of thebrush, as shown in the illustrations; and it is advantageous that thethree points referred to shall fall approximately in a straight line,due allowance being made for the inclination and the bending of thebrush.

Although I have described one complete embodiment of my invention, itwill be understood that various features thereof may be independentlyused, and that various modifications might be made without depattimefrom the spirit and scope of my invene tion as' the same is indicatedabove and in the following claims.

What I claim 1s:

1. The combination with a compass. leg

and a socket adjustably connected to the leg,

of a finger adjustably connected to; the leg and adapted to bear at theopposite side of a shin the r sh ho d r r m he eg I leg, i -clamp,adapted to hold a brush pivupper end of the leg and bent laterally sothat a brushmaymounted jlll the brush holden and bear between the pointsof the leg andfinger.

3;.-A brush guide comprising a compass otjally connected to the upperend of the brush leg, a slotted link connecting the clamp to anintermediate portion of the compass leg,.a1'1 adjusting, screw in theslot and compass leg, and a finger having a slotted upper end to fitunder the head of the clamping screw, said finger being bent laterallyso that a brush, in the brush clamp will be between thetips of thecompass leg and finger.

4. A brush guide comprising the combination with a compass leg, a clamppivoted'to the upper end of the compass leg and forming a brushholder, alink connected to the clamp andv having a sl;o.t,'a,n adjusting se rewpassing through the slot and connecting the lamp o the pa a inger a pted towbe held adjustablyinplace by the clamping screw and adapted tobear at the opposite side of a brush in the, brush'holderfrom the leg. Y

--In1testimony WhereofI have vsigned my name to'this specification. noGEQBGE E. JANES;

